ABSTRACT
In recent years, peer-to-peer (P2P) computing has attracted significant attention in both industry and academic research (Clark, 2001; Milojcic et al., 2002; Schoder and Fischbach, 2003). Many peer-to-peer networks have been deployed on the Internet, and some of them have become the most popular Internet applications. Unlike traditional client/server systems, each node (peer) in pure P2P networks can act as both client and server with equal capability. Peers can exchange information and services directly with each other to perform a critical function coordinately in a decentralized manner.
